Spider DSA User’s Manual
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Figure 171: Attributes of Signal Display
The bar graphs are in a logarithmic scale so that the presence of both low-level
and high-level signals can be seen. The readings show the minimum, maximum,
RMS, and Peak levels, in the units set in the channel setup table. If the units are in
acceleration, then the signal is integrated to show the velocity peak and double
integrated to show the displacement peak. The integration is done digitally and
should only be taken as estimation; the accuracy should not be relied on.
The Overload column shows when a channel is overloaded due to an input signal
over the input maximum. When in the overloaded state, the readings from the
channel should not be used.
The channel status information can be updated while a test is not running by
right-clicking in the window and selecting Start Refresh.
Once a window is created, with a type and combination of displayed signals, it can
be saved as a custom window template. To save a current window layout, select
the window and choose Save Active Window as User Defined under the
Display menu. After saving, this template will be available under User Defined
Windows in the Display menu.
Signals can also be added to existing windows. Dragging a signal from the signal
list to a window will display it in the window. You can also right-click on the signal
and select Add to the Active Window. Note that the target window for the
signal must be a valid option for the signal type.
Test Parameters
The Test configuration window, analysis parameters tab is designed to configure
test settings as required.
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